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Fuji Electric BU-FSB3100 Molded Case Circuit Breaker 600V AC

$99.00 USD

Sale Sold out

ConditionSurplus - Untested MPNBU-FSB3100 Stock #Stock # 0626-01637

Photos reflect current condition. Items differing from description may be eligible for return or refund — see our condition guide.

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Estimated package weight: 10.0 lbs

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Product Specifications

Manufacturer: Fuji Electric
MPN / Model: BU-FSB3100
Product Type: Molded Case Circuit Breaker
Poles: 3 Pole
Amperage: 100 Amp at 40 C
Voltage: 600V AC
Interrupting Rating: 14kA at 600V, 22kA at 480V, 30kA at 240V (50/60Hz)
Wire Connector: BU-TA100, 60/75 C Cu/Al, 14 to 1/0 AWG, 50 Lb-in torque
Auxiliary Switch: BU-WFH, AC240V 5A
Trip Accessory: S-3P (Push to Trip)
Approvals: UL Listed, CSA Certified (LR 66856)
Country of Origin: Japan

Product Description

Fuji Electric BU-FSB3100 is a 3 pole molded case circuit breaker rated 100 Amp at 40 C and 600V AC, identified by catalog number BU-FSB3100 from the BU-FSB series. This unit carries an interrupting rating of 14kA at 600V, 22kA at 480V, and 30kA at 240V across 50/60Hz, and is UL Listed and CSA Certified under LR 66856. The breaker is fitted with a factory BU-WFH auxiliary switch rated AC240V 5A and an S-3P push to trip accessory, with attached wiring leads visible in the photos. The wire connector reference is BU-TA100 for 60/75 C Cu/Al conductors, 14 to 1/0 AWG at 50 Lb-in torque. Manufactured by Fuji Electric in Japan. This listing is useful for maintenance buyers and MRO purchasing teams matching the exact Fuji catalog number for replacement, spare inventory, or panel sourcing. The nameplate also shows manufacturing references 56271414 and 56265035b for the breaker body and trip accessory. Surplus item, untested.

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Frequently Asked Questions

Shipping & Handling

Most orders ship within 1–2 business days via UPS, but expedited same-day handling is available as an add-on to orders in cart. Larger equipment ships via freight carrier. Use the shipping estimator above for a location-specific quote. Local pickup is also available at our Fairfield, IL facility, typically ready within 4 hours.

Returns & Condition

All items are sold as-described based on the photos and condition listed. If an item arrives differing from its description, it may be eligible for return or refund. See our full condition guide for details on our grading terms.

Payment Options

We accept all major credit cards, PayPal, and Shop Pay. Purchase order and wire transfer payment is also available by selecting "Purchase Order / Wire Transfer" at checkout. Payment is due prior to shipment. Contact us for custom terms on established accounts. Tax exemptions are honored if proper documentation is provided.